Gun rail mounting device



FIG. 1 is a front/right isometric view of the gun rail mounting device wherein the ghosted portions do not form any part of the claimed design;

FIG. 2 is a rear/left isometric view of the gun rail mounting device wherein the ghosted portions do not form any part of the claimed design;

FIG. 3 is a front elevational view of the gun rail mounting device wherein the ghosted portions do not form any part of the claimed design;

FIG. 4 is a rear elevational view of the gun rail mounting device wherein the ghosted portions do not form any part of the claimed design;

FIG. 5 is a right side view of the gun rail mounting device wherein the ghosted portions do not form any part of the claimed design;

FIG. 6 is a left side view of the gun rail mounting device wherein the ghosted portions do not form any part of the claimed design;

FIG. 7 is a top view of the gun rail mounting device wherein the ghosted portions do not form any part of the claimed design; and,

FIG. 8 is a bottom view of the gun rail mounting device wherein the ghosted portions do not form any part of the claimed design. 

CLAIM The ornamental design for a gun rail mounting device, as shown and described. 